<?php
/**
 * Smarty plugin
 *
 * @package    Smarty
 * @subpackage PluginsModifier
 */

/**
 * Smarty capitalize modifier plugin
 *
 * Type:     modifier<br>
 * Name:     capitalize<br>
 * Purpose:  capitalize words in the string
 *
 * {@internal {$string|capitalize:true:true} is the fastest option for MBString enabled systems }}
 *
 * @param string  $string    string to capitalize
 * @param boolean $uc_digits also capitalize "x123" to "X123"
 * @param boolean $lc_rest   capitalize first letters, lowercase all following letters "aAa" to "Aaa"
 *
 * @return string capitalized string
 * @author Monte Ohrt <monte at ohrt dot com>
 * @author Rodney Rehm
 */
function smarty_modifier_capitalize($string, $uc_digits = false, $lc_rest = false) {
	if (Smarty::$_MBSTRING)
	{
		if ($lc_rest)
		{
			// uppercase (including hyphenated words)
			$upper_string = mb_convert_case($string, MB_CASE_TITLE, Smarty::$_CHARSET);
		}
		else
		{
			// uppercase word breaks
			$upper_string = preg_replace("!(^|[^\p{L}'])([\p{Ll}])!eS" . Smarty::$_UTF8_MODIFIER, "stripslashes('\\1').mb_convert_case(stripslashes('\\2'),MB_CASE_UPPER, '" . addslashes(Smarty::$_CHARSET) . "')", $string);
		}
		// check uc_digits case
		if (!$uc_digits)
		{
			if (preg_match_all("!\b([\p{L}]*[\p{N}]+[\p{L}]*)\b!" . Smarty::$_UTF8_MODIFIER, $string, $matches, PREG_OFFSET_CAPTURE))
			{
				foreach ($matches[1] as $match)
				{
					$upper_string = substr_replace($upper_string, mb_strtolower($match[0], Smarty::$_CHARSET), $match[1], strlen($match[0]));
				}
			}
		}
		$upper_string = preg_replace("!((^|\s)['\"])(\w)!e" . Smarty::$_UTF8_MODIFIER, "stripslashes('\\1').mb_convert_case(stripslashes('\\3'),MB_CASE_UPPER, '" . addslashes(Smarty::$_CHARSET) . "')", $upper_string);

		return $upper_string;
	}

	// lowercase first
	if ($lc_rest)
	{
		$string = strtolower($string);
	}
	// uppercase (including hyphenated words)
	$upper_string = preg_replace("!(^|[^\p{L}'])([\p{Ll}])!eS" . Smarty::$_UTF8_MODIFIER, "stripslashes('\\1').ucfirst(stripslashes('\\2'))", $string);
	// check uc_digits case
	if (!$uc_digits)
	{
		if (preg_match_all("!\b([\p{L}]*[\p{N}]+[\p{L}]*)\b!" . Smarty::$_UTF8_MODIFIER, $string, $matches, PREG_OFFSET_CAPTURE))
		{
			foreach ($matches[1] as $match)
			{
				$upper_string = substr_replace($upper_string, strtolower($match[0]), $match[1], strlen($match[0]));
			}
		}
	}
	$upper_string = preg_replace("!((^|\s)['\"])(\w)!e" . Smarty::$_UTF8_MODIFIER, "stripslashes('\\1').strtoupper(stripslashes('\\3'))", $upper_string);

	return $upper_string;
}

?>
